vrijdag 12 september 2008 23:35
Kurt Roggen
HyperV VSS Writer and invalid/corrupted VM configuration files hotfix
If you ever tried to use or find the HyperV VSS writer using "vssadmin list writers", but failed or were unable to find it back in the VSS writers list, it is was probably due to invalid and/or corrupted VM configuration files. Removing the invalid (symbolic link) to the VM configuration file would make the Hyper-V VSS writer reappear.
An error occurred while identifying the Hyper-V VSS Writer - EvID 10107 | 
Failed to get summary information for virtual machine - EvID 18160 |
The issue is that if you have a single invalid or corrupted configuration file none of the virtual machines will be backed up properly on that server. Now a hotfix for this issue has been released for this issue. So make sure you have this hotfix on your HyperV systems.
Have a look at this KB article 956697 relating to the VSS writer and corrupted or/and invalid VM configuration files.
For more information: KB956697 - Hyper-V VSS writer is not used during a backup job because of corrupted or invalid virtual machine configuration files
Filed under: WindowsServer2008, HyperV